96 
Journal of the Mitchell Society [November 
A portion of the substance dissolved in water showed no acid 
reaction, although Rosenheim found an immediate acid reaction 
and explained the peculiar results he obtained from a study of its 
molecular conductivity by assuming a rapid hydrolysis of the 
compound . Analysis showed : 
i 
Cl (Ionizable) 8.02 
Pt ^42.30 
NJI 3 7.04 
Cl (Ionizable) 
Pt 
NHs 
Found by Rosenheim 
n l ii 
7.90 15.08 14.42 
41.40 41.68 
7.18 7.19 
Theoretical for 
r (nh 8 )2 i 
i r 01 i 
I pt 
Cl4|Pt(NH3)2 \ 
L p<0C2H5)sJ 
1 2 L P(OC2H5)aJ 
15.23 
7.62 
41.82 
41.82 
7.30 
7.30 
Ionizable chlorine was determined at room temperature by precip- 
itation of the water solution of the substance with excess of silver 
nitrate. The filtrates remained clear even after standing several 
weeks. Platinum was determined by Rosenheim ’s method 1 , ammo- 
nia by the Kjeldahl method. 
Effort was then made to determine the total chlorine by Rosen- 
heim's method 1 but concordant results could not be obtained. 
Determinatians of the total chlorine by Stepan ow’s 2 method gave: 
Total Chlorine 
i. n. Theoretical 
15.19 15.00 15.23 
Determination of the molecular conductivity at 25° showed 
v 32 64 128 256 512 1024 2048 
p. 95.79 100.13 106.09 113.49 119.70 127.97 138.98 
Found by Rosenheim 155.9 160.8 160.4 160.0 162.3 
1 Z. anory. C 'hem., Vol. 37, p. 395. 
2 Ber., Vol. 39, p. 4056. 
